Not web standard, but for macOS: https://stackoverflow.com/questions/25207077/how-to-detect-if-os-x-is-in-dark-mode https://stackoverflow.com/questions/25207077

Not web standard, but for macOS: https://stackoverflow.com/questions/25207077/how-to-detect-if-os-x-is-in-dark-mode https://stackoverflow.com/questions/25207077/how-to-detect-i...